Xwell



UNITED STATES PATENT OFFICE.

WARNOCK & CO.,

OF SAME PLACE.

FIFTH-WHEEL.

SPECIFICATION forming part of Letters Patent No. 383,323, dated May 22,1888.

Application filed February 9, 1888. Serial No. 263,493. (No model.)

To aZZ whom, it may concern.'

Beit k nown that I, WILLIAM EDWARD ROTH- WELL, of the town of Galt, inthe county of W'aterloo, in the Province of Ontario, Canada, masterblacksmith, have invented a certain new and useful Improvement inFifthNVheels, of which the following is a specification.

This invention relates to certain new and useful improvements infifth-Wheels; and the novelty consists in the peculiar combination,arrangement, and adaptation of parts, all as more fully hereinafterdescribed and claimed.

Figure lis a perspective View of my mproved fifth-wheel. Fig. 2 is alongitudinal section ot' same.

In both figures it will be noticed that the bottom half, A, of the rimofthe fifth-wheel is made substantially Vshapcd, and is designed to fitinto a correspondinglyshaped concave made in the top half, B, of thefifth-wheel. By thus forming a joint between the two halves of the rimof the iiftlrwheel a large bearingsurface is secured Without increasingthe Width of the rim, and it, moreover, forms ajoint between the twohalves, which, While permitting a free circular movement, effectuallyprevents either half ofthe rim spreading.

Of course I do not wish to confine myself to the exact V shape shown, asit will be understood that this shape might be varied without affectingthe accomplishment of the objects I have named. The cross bar formingthe headblock bearing C has a lug, D, projecting from it, through whichthe kingbolt E passes.

A hub, e,(see Fig. 2,) is made on the bottom of the lug D, and isdesigned to fit into a hole made to iit itin the lug F,which projectsfrom the crossbar or axle-bearing G. A correspending hub,f, (see Fig.2,) is made on the reach-bracket H, and tits into the hole, beforereferred to, in the lug F. These hubs e andf will therefore receive theentire strain of the connection between the reach and the axle. All thatthe king-bolt E is called upon to do is to hold the parts together, alllateral strain upon the bolt being borne by the hubs c andf, Which iitthe hole made in the lug F. It will be noticed that the reach-iron I isbent so as to extend below the bottom half, A,of the fifthwheel rim, andthat it is bolted to the top half, B, of the fifth-wheel rini by a bolt,J, passing through a lug, K, formed on the outside ofthe top half, B, ofthe fifth-wheel rim.

What I claim as my invention is- A fifth-wheel having a lug, D,extending from its head-block bearing C, said lug having a hole toreceive the kingbolt E, and a hub, e, surrounding the said hole anddesigned to tit into a hole made in thelugF,which extends from theaxle-bearing G, in combination with a reach-bracket, H, having a hole init to receive the king-bolt E, and a hub,f, to fit into a hole Inade inthe lug F, substantially as and for the purpose specied.

Galt, January 20, 1888.

W. E. ROTHWELL.

In presence of A. WARNooK, JAMES E. KEER.

